Attachment eor printing presses



April 26, 1927. 1,625,444

W. D. BARNES ATTACHMENT FOR PRINTING PRESSES Filed Auz.13. 1926 2Sheets-Sheet 1 F .1 j Y INVENTOR.

, ATTORNEY. M6.

W. D. BARNES ATTACHMENT FOR PRINTING PRESSES April 26, 1927. 1,626,444

Filed Aug. 13. 1926 2 Sheets-Sheet 2 INVEN TOR.

Waligrfl. Barnes,

% ATTORNEY.

Patented Apr. 26, 1927.

UNITED STATES WALTER D. BARNES, 0F LANCASTER, PENNSYLVANIA.

ATTACHMENT FOR PRINTING PRESSES.

Application filed August 13, 1926.

This invention relates to a roll leaf feeding mechanism for use inconnection with the operation of hot stamping on a job printing orplaten press, and has for its object to provide in a manner ashereinafter set forth, a roll lea l feeding mechanism which can bereadily installed with respect to and conveniently removed from thepress when desired, as well as being driven from the press wheninstalled or attached thereto for use in the operation of hot stampin Afurther object of the invention is to provide, in a manner ashereinafter set forth, a feeding mechanism for the purpose referred tofor feeding the leaf in the length desired, or in other words a feedingmechanism including means for adjusting the length of the leaf fed tomeet requirements, or for simultaneously feeding differentor uniformlengths of leaves to meet requirements during the hot stampingoperation.

A further object of the invention is to provide, in a manner ashereinafter set forth, a feeding mechanism for the purpose referred toincluding a plurality of leaf feed devices and whereby said devices aresynrhronmisly operated from the press to which ihe mechanism isattached, and further whereby each of the feed devices includes a pairof superposed rolls and with the length of the leaf fed controlled bythe diameter of the lower roll of each pair.

Further objects of the invention are to provide in a manner ashereinafter set forth,

roll leaf feeding mechanism for use in connection with the operation ofhot stamping and which is comparatively simple in its construction andarrangement, strong, durable adjustable, compact, readily installed withrespect to a press and quickly removed there from when desired,thoroughly efficient in its use, and comparatively inexpensive to setup.

W'ith the foregoing and other objects in view. the invention consists ofthe novel con struction, combination and arrangement of parts ashereinafter more specifically described, and illustrated in theaccompanying drawings, wherein is shown an embodiment of the invention,but it is to be understood that changes, variations and modificationscan be resorted to which fall within the scope of the claims hereuntoappended.

In the drawings wherein like refererence characters denote correspondingparts throughout the several views:

Figure 1 is a front elevation, partly in sec- 1 of the press.

Serial No. 129,052.

tion, of a roll leaf feeding mechanism in accordance with thisinvention.

Figure 2 is an elevation looking towards one side thereof.

Figure 3 is a fragmentary view, in elevation looking towards the otherside thereof.

Figure 4 is a fragmentary view, partly in section, illustrating adriving means for aleaf feed device.

Referring to the drawings in detail 1 denotes the frame of a. press and2 a pair of oscillatory crank arms forming elements thereof and actuatedduring the operation of the press.

A leaf-feeding mechanism, in accordance with this invention, comprises apair of up standing brackets referred to generally by the referencecharacter 3. Each of said brackets includes an upwardly inclinedintermediate portion 4, a depending end .p0rtion 5 and an upstanding endportion (3. The end portions 5 are flanged as at 7 and extendingtherethrough are hold fast devices 8 for securing the brackets to theframe Depending from each bracket 3 is a brace member 9 which is securedat its upper end, as at 10 to an intermediate portion 4 and at its lowerend is socured as at 11 to the frame 1 of the press. Each end portion 6,intermediate its ends is enlarged as at 12 and formed with a verticallydisposed slot 13. The upper part of each end portion 6 is formed with avertically-disposed slot 14.

The feeding mechanism can be set up with one or more leaf feed devices,preferably two feed devices are illustrated and are carried by the endportion 6 of the bracket 3. The feed devices are arranged in superposedrelation. Each feed device consists of a pair of superposed feed rollersor rolls. Each of the rolls or rollers is serrated on its peripherythroughout. Each roll is carried by a suitable shaft. The rollers of theupper feed device are indicated at 15, 16, the roller 15 being the upperroller of the upper feed device. The shaft for the roller 15 isindicated at 17 and the shaft for the roller 16 is indicated at 18.Arranged in the end portion 6 of the bracket 3 are spring controlledbearings 19 for the shaft 17. The bearings 19 are slidably mounted inthe slots 14. One end of the shaft 18 is journaled in one of thebrackets 3 as at 20 and the other end thereof is journaled in the otherbracket 3, extends therefrom as at 21, andthe extending end of the shaft18 is journaled in the housing to be presently referred to.

The lower feed device comprises an upper roller 28 and a lower roller 2%and the periphery of each of said rollers is serrated throughout. Theroller 2% is of greater diameter than the roller The shaft of the roller23 is indicated at and which is journaled in a pair of spring controlledbearings 26 slidably mounted in the slots 13 of the portions 12 of thebrackets 3. The shaft of the roller 24- is indicated at 27 and which hasone end thereof journaled in one of the brackets 33, as indicated at 28and its other end journaled in the other bracket and extended therefromas at 29. The extended end 29 of the shaft 27 is journaled in ahousing30 to be presently referredv to.

T he housing is arranged exteriorly of one bracket 3, that is the endportion 6 of such bracket near the top thereof and the housing .30 isarranged exterior-1y of the other bracket 3, that is the end portion (5of such bracket near the lower end of said end portion. The housing 22is similar in coilstructiou to the housing 30 and with reference toFigure l each of said housings con sists of an open side body portionEll formed with an extension 32 having an opening 33 at the top andbottom thereof. The extension 32 is vertically disposed and the openings 33 provide a guide passage for a purpose to be presently referredto. Detach ably secured to the open sideof the housing 31 and arrangedagainst the extension 32 is a closure plate 34:. The projecting ends 21of the shaft 18 is journaled in the closure plate 3d for the housing 22and the projecting end 29 of the shaft 27 is journaled in the closureplate 3d of the housing 30.

Theprojecting end 21 of the shaft 18 as well as the projecting end. 29of the shaft 27, is provided with a slip gear 35, see Figure l, andwhich is arranged in the body portion 31 of the housing. A clutchingdevice 36 is mounted on the projecting end of either of the aforesaidshafts for clutching the gear to the shaft on the vertical movement of arack bar referred to generally by the reference character 37, see Figurel.

The rack bar 37 which associates with the shaft 18 is formed of an uppersection 38 and a lower section 39. The rack bar 3'? which associateswith the shaft 27 is formed with an upper section at) and a lower sec--tion 41. The lower end of the section 38 is tubular and extendingtherein is the section 39. The lower end of the section ll) is tubularand extending therein is a section 41. The tubular part of the section38 as well as the tubular part of the section ll) is formed with anelongated slot e2 extending lengthwise thereof and reinforcing bands 43are carried by each of the tubular parts of the said sections 38, 40.The section 39 as well as the section all is peripherally threaded as ate l. The lower end of the section 39 is pivotally connected to one ofthe oscillatory cranks 2 as at and the lower end of the section ell ispivotally connected, as at to to the other oscillatory crank Adjustablyengaging with the section 3%), as well as the section a l, is anadjusting nut at? for the purpose of controlling the stroke of a rackbar 3?. The lengthwise adjusting of the nuts on the sections 39 and a lwill. control the stroke of the rack bars ill". The sections 38 and 4h)seat on the nuts lf. The rack bars 37 mesh with the slip gears 35 andthe upper end of each rack bar carries a stop ltl to prevent the rackbar from sliding downwardly through a housing.

Secured to the intermediate portion at of the bracket 3 and spaced fromthe roll 24; is a revoluble guide roller 49 for maintaining the leaf 5Ofed by the upper feed device clear of the rollers of the lower 'l'eed dev'ice. The securing means between the guide roller 4.9 and the endportion (5 of the bracket 3 consists of a pair of laterally extendingsuspension arms 51. The leaf which is fed by the lower feed device isindicated at and passes inwardly with respect to the guide roller 49,.see Figure l.

The leaf fed is in the form of a ribbon and unwound from a roll. 'ilheroll from which the leaf 50 is unwound. is indicated at 53 and the rollfrom which the leaf 52 is unwound is indicated at 54. The rolls and arecarried by a shaft which is supported in the fraznc 1. of the press. Theshaft connected to the frame 1 in anv suitable manner. lilounted on theshaft is a pair of adjustable guides one associated with the roll 53 andthe other with the roll 54-. Mounted on the shaft 55 is a pair of springcontrolled permanently shiftuble guides 57, one of which oriates withthe roll and the other with the roll Ji l. A guide 56 associates with aguide 5. for the purpose of holding the ribbon in place in roll likeform on the shaft The shaft 55 carries a pair of stop colla 58 eachprovided with set screw 59' and betwceirthe collar 58 and the guide 57is the controlling spring 60 for the latter. The spril 60 are mounted onthe shaft 55. The spring controlled guides 57 give pressure or tensionon the ribbon so that it does not hang and sag in the operation. Theleaf 50 extends up between the rollers 15 and 16. the leaf 52 extends upand between the rollers 22- and 2st. The serrated or knurled faces ofthe rollers 15, 16.. H3 and 24 do not in any manner impair the leaf butdo facilitate the feed thereof when the rollers 16 and 24-. areintcrniittently revolved through the reciprocatory action of the rackbars 37, and said action is imparted to the bars on the oscillatorymovement of the crank arms 2. As each rack bar is formed of a pair oftelescopic adjustable sections the length of the stroke of each bar canbe adjusted and each bar can be adjusted independently.

he rollers of the feed devices can be of any suitable diameter, butpreferably the lower roller of the lower feed device is four and onehalf inches in diameter and the upper roller thereof as Well as therollers of the upper feed device are two inches in diameter. liy thisarrangement one set of rollers is given a much greater pulling strokethan the other set and this allows a long pull and a short pull at thesame time they may be needed and furthermore the number of feed devicescan be increased over those shown, by extending the bracket to a heightto provide for super-posing another feed device over the rollers 15, 16.

The feed of the leaves or ribbons is had synchronously andsin'iultaneously with the operation of the press and the attachmentowing to the manner in which the ribbons or leaves are fed providegreatly superior results and at the same rate or cheaper than ordinarybronzing and further the cloth work can be done at less than one halfthe cost of the regular bindery stamping now in use, as the attachmentrequires only one attendant in both operations against three or four asis the case at present and the attachment provides for a greaterproduction per hour than can be obtained now by the present method andfurther the production will depend in accordance with the speed of themachine attached or the operators ability, therefore it is thought thatthe many advantages of a leaf feeding mechanism, in accordance with thisinvention, and for the purpose referred to, can be readily understood,and although the preferred embodiment of the invention is as illustratedand described. yet it is to be understood that changes in the details ofconstruction can be had which will fall within the scope of the claimshereunto appended.

lVhat I claim is:

1. A leaf feeding mechanism for use in hot stamping comprising a pair ofsuperposed feed rollers for intermittently feeding a leaf in the form ofa ribbon for a portion of its length, a sectional lengthwise adj ustablereciprocatory rack bar, and means mounted on one end of said lowerroller and engaged by said bar to provide for the intermittent operationof the rollers to feed the leaf, the adjustability of saidbarcontrolling the duration of the drive of said means thereby providingfor varying the length of that portion of the leaf fed by the rollers.

2. A leaf feeding mechanism for use in hot stamping comprising a pair ofsuperposed feed devices each consisting of a pair of superposed rollersfor intermittently feeding the leaf in the form of a. ribbon from a rollfor a portion of its length, a pair of reciprocatory rack bars operatingsynchronously, means mounted on one end of the lower roller of each pairof rollers and engaged by a rack bar to provide for the intermittentoperation of said devices simultaneously to feed the leaf from itsrespective roll, the rollers of said upper feed device being of the samediameter and the lower roller of the lower feed device being of greaterdiameter than the upper roller of said device.

3. A leaf feeding mechanism for use in hot stamping comprising a pair ofsuperposed feed devices each consisting of a pair of superposed rollersfor intermittently feeding the leaf in the form of a ribbon from a rollfor a portion of its length, a pair of reciprocatory rack bars operatingsyn chronously and one co-acting with the lower roller of one pair andthe other coacting with the lower roller of the other pair, meansmounted on one end of the lower roller of each pair of rollers and'engaged by its co-acting rack bar to provide for the intermittentoperation of said devices simultaneously to feed the leaf from itsrespective roll, and each of said rack bars being lengthwise adjustablefor controlling the stroke thereof thereby providing for varying thelengths of the portions of the leaves fed by said devices.

4. A leaf feeding mechanism for use in hot stamping comprising a pair ofsuperposed feed devices each consisting of a pair of superposed rollersfor intermittently feeding the leaf in the form of a ribbon from a rollfor a portion of its length, a pair of reciprocatory rack bars operatingsynchronously, means mounted on one end of the lower roller of each pairof rollers and engaged by a rack bar to provide for the intermittentoperation of said devices simultaneously to feed the leaf from itsrespective roll, the rollers of said upper feed device being of the samediameter and the lower roller of the lower feed device being of greaterdiameter than the upper roller of said device, and each of said rackbars being lengthwise adjustable for controlling the stroke thereof.

5. A leaf feeding mechanism for use in hot stamping comprising a pair ofsuperposed feed devices each consisting of a pair of superposed rollersfor intermittently feeding the leaf in the form of a ribbon from a rollfor a portion of its length, a pair of reciprocatory rack bars operatingsynchronously and one co-acting with the lower roller of one pair andthe other coacting with the lower roller of the other pair, meansmounted on one end of the lower roller 0?": each pair of rollers andengaged by its co-acting rack bar to provide for the intern'iittentoperation of said devices simultaneously to feed the leaf troin itsrespective roll, and each of the rollers heinnserrated throughout andthe upper one ot the rollers (it each oi. said devices being springcontrolled.

(i. A leajt 'leeding mecl'ninisni TlOl use in hot stamping com 'niisinga pair of superposed feed devices each consi ting; of a pair ofsuperposed rollers tor intermittently tee/ding the leaf in the f-(Hfllloi a rihhon 'i'roni a roll for a portion oi its length. a pair ofreciprocatory rack bars operating synchronously, means mounted on oneend of the lower rollers oi each pair or rollers and engaged by a rackbar to provide tor the intermittent ope 'ation oi said devicesniinultaneousljv to feed the leal from its reregective roll the rollersof said upper teed device heing of the same diameter and the lowerroller of the lower teed device being ot greater diameter than the upperroller of said device, and each of the rollers of each of saidylevicesheing serrated ihrou grluiiut and one of the rollers ot eacn of said devices heii'igg; spring controlled.

7. A leaf feeding mechanism :tor use in hot stamping; comprising a pairof superposed teed devices each consisting of a pair of superposedrollers for inti-irinittently feeding the leal in the term of a rihhon'l'roin a roll for a portion of its length, a pair of reciprocatorv rackliars operating; synchronously, means mounted on one end of the lowerroller oi each pair of rollers and engaged by a rack liar to provide forthe intermittent operation of said devices simultaneously to teed theleaf from its respective roll supportinn means common to said rolls oi.leat', an adjusta ile and a spring controlled ;guide mounted onsaidmeans for each ot said rolls, and each of the rollers of each or saiddevices being serrated throughout and one of the rollers of each of saiddevices being spring controlled.

8. A leat' feeding mechanism for use in hot stamping comprising a "pairof superposed feed devices each consisting of a pair superposed rollersfor intermittently 'leeding he leal in the form of a rihhonfrom a rollfor aportion of its .lengtln'a pair of recipr eatery rack bars o'ierating synchronously, means mounted on one end or the lower roller ofeach pair of rollers and engaged bya rack bar to provide for theintermittent operation of said devices simultaneouslyto feed the leaffrom its respective roll, the rollers of said upper teed device beposedteed devices each consisting of a pair o't superposed rollers forintermittently lending the leaf in the form of a. ribbon tron'i a rollfor a portion of its length, a pair of reciprocatin-y rack barsoperating synchronousl v, means mounted on one end of the lower rolleror each pair of rollers and engaged by a rack bar to provide for theintermittent operation of said devices simultaneously to tteed the leakfrom its respective roll, the rollers of said upper teed device heinn ofthe same diameter and the lower roller of the lower feed device being ofgreater diameter than the upper roller of said device, each of said rackbars being lengthwise adjustable for controlling the stroke thereof, andeach of the rollers of each of said devices being serrated throughoutand one of the rollers of each of said devices being spring controlled.

In testimony whereof, I affix my signature hereto.

W'ALTER D. BARNES.

